Official FAQ checked October 11, 2026. The current guidance is a scope reference, not a retroactive case decision or medical diagnosis.
OSHA’s public FAQ says it has no general IAQ standard, identifies construction/remodeling and moisture as potential IAQ sources, and separately refers to occupational standards and the General Duty Clause. This does not establish the elements of a particular citation or an employee exposure. https://www.osha.gov/indoor-air-quality/faqs
The March 6 letter’s item 6 points to the lack of a specific IAQ standard and serious-harm standards. The question is which dust/source, exposure, and controls were evaluated, not whether food-safety findings automatically prove an OSHA violation.